Gallery, Projects and General > How do I??

hacksaw blades

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miken:
Ive done it,
  A workmate had some stellite twist drills in his tool box and they whizzed through a h/saw blade.
 Ive just been given an apprentice to work with me at work in the machine shop ,so Ive given him this as a project to make (for me).
  When its done it will go (to my) home.
 I could have made it bigger to accept standard blades but im trying to keep it as compact as possible so it fits on my work bench.
  He only started it yesterday so theres not much to show yet.I will put pics on later.
thanks for the quick replies.
Mike

sbwhart:
Hi Mike

Pleased you got sorted.

Pics of the build would be nice as

 :worthless:

 :D

Cheers

 :beer:

Stew

Mustang:
Mike,

When I need to make a hole in a saw blade I chuck up a piece of steel rod the size of the desired hole in the drill press. The rod should be faced off so the contact area is flat. Set the speed at around 1k rpm. Mark the blade where you want the hole and securely clamp it to the drill press table, aligned with the steel rod over the area where you want the hole. I use a wood backing plate under the blade.  Turn on the dp and lower the rod in contact with the desired area. Apply moderate pressure to heat the area. This softens the area under the rod. Replace the rod with a drill bit and bore the hole. Works for me and just takes a few minutes to complete.

Andy

sbwhart:
Hi Andy

Thats a neat way of localy anealing the blades thanks for sharing.

I've seen friction welding done in industry using the same idea.

Stew

John Hill:

--- Quote from: Darren on June 30, 2009, 05:14:13 AM ---Any chance of a pic John H, ?

--- End quote ---

Like this..

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